What I'm trying to do is, is to make a significant difference in space flight. And help make space flight accessible to almost anyone.

My opinion is it's a bridge too far to go to fully autonomous cars.

I'm glad to see that BMW is bringing an electric car to market. That's cool.

America is the spirit of human exploration distilled.

I think life on Earth must be about more than just solving problems... It's got to be something inspiring, even if it is vicarious.

Facebook is quite entrenched and has a network effect. It's hard to break into a network once it's formed.

If you're trying to create a company, it's like baking a cake. You have to have all the ingredients in the right proportion.